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Thank you nm!
Re-encoding is too time consuming.
I tried to trick the level with -vbsf h264_changesps=level=30, ffmpeg complains...
ffmpeg.exe -y -i elph300hs.MOV -async 1 -vcodec copy -acodec libvo_aacenc -ac 2 -ab 192000 -vbsf h264_changesps=level=30 elph300hs_41.mp4
ffmpeg version N-39664-g6bfb304 Copyright (c) 2000-2012 the FFmpeg developers
built on Apr 9 2012 20:29:24 with gcc 4.6.3
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass --enable-libcelt --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libnut --enable-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
libavutil 51. 46.100 / 51. 46.100
libavcodec 54. 14.101 / 54. 14.101
libavformat 54. 3.100 / 54. 3.100
libavdevice 53. 4.100 / 53. 4.100
libavfilter 2. 67.101 / 2. 67.101
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 10.100 / 0. 10.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'elph300hs.MOV':
Metadata:
major_brand : qt
minor_version : 537331968
compatible_brands: qt CAEP
creation_time : 2012-04-24 01:30:11
Duration: 00:00:02.29, start: 0.000000, bitrate: 35886 kb/s
Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuvj420p, 1920x1080, 34008 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 48k tbc
Metadata:
creation_time : 2012-04-24 01:30:11
Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s
Metadata:
creation_time : 2012-04-24 01:30:11
Unknown bitstream filter h264_changesps=level=30
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